Missy....Anything with the Eiffel Tower...my great niece was a freak for that for several years and I found so much to give her for that look.
Kirklands has all the accessories you would need to make that Paris theme happen. Go check it out either online or in store.
Home Goods has tons of stuff if looking to purchase items. Or do you want to DIY???
Hobby Lobby is also a great resource with plenty of Eiffel Tower themed items, like lamps, and pictures. You can find nice cardboard boxes printed with lovely Paris themed images that could be stacked and used to hide items away.
I would check Home Goods or Hobby Lobby as they always have fun Paris themed decor pieces